Question

помогите решить уравнение
x квадрат +8x+14=0

Answer 1

x^2 + 8x + 14 = 0 
D = 64 - 4*14 = 8 
x1 = ( - 8 + 2√2)/2 = - 4 + √2;
x2 = ( - 8 - 2√2)/2 =- 4 - √2;

Answer 2

Д = 64 - 4 × 1× 14 = 64 - 56 = 8
х1 = - 8 + 8 / 2 = 0 ;
х2 = - 8 - 8 / 2 = - 8 .